Refrigerating apparatus.



J. SCHEIDEMAN.

REFRIGERATING APPARATUS.

APPLICATION FILED MAR.2,190`8.

992,256, Patented 0cm?, 1908.

sorption chamber and to open them to pressure in the expansion chamber. I h

In the lower part of 'the casing 1 is the distilling chamber communicating at its upper end through the throat 26 with the lower y riig from the upper part of the water-jaclmtv is 4the overflow pipe 3l and from its lower end .leads the drain pipe 32 controlled by a suitable valve. The drain pipe is connected by the branch pipe 33 with the water and steam supply pipes 29 and 30. By means of the drain pipe and its connections and the supply ipes water can be circulated inthe waterpicketl and the latter also 4cleaned and einptied of its contents. From the lower part of the distiliing chamber the pipe 34 leads upwardly throu h the water-jacket to a blowoi' cock on t e exterior. By means of the latter pipe the distillingchainbercan be freed of its contents. The separator 35, through whicl'i the liquid ammonia hows, has leading from its lower end the egress pipe 36. '.lhe inner end of the egress pipe 36 opens into the separator at a level considerably' above its bottom. W-l'iile in the separator the'llquid ammonia is comparatively quiescent and the heavier' impurities in the saine have an opportunity to settle in the lower part of the separator, where they collect b( ow the mouth of the egress pipe 36. Means are provided for withdrawing the impurities from the separator and recovering any ammonia that may be mixed with the same.

Connected with the separator 85 at its lowest level is the pipe 37 leading to the duct 38 in the partition 2O separating the absorp tion and. expansion chambers.. This duct leads to the center of the partition and there connects with the pipe 39 extending downwardly into the expansion' chamber and carryiiig;r at its lower endthe distributing cup 40, into which the pipe opens through the outlets 41'in its lower end. ln one end of the pipe 37 adjacent to theseparator is the sto lvalve 42 and in the other end adiacent to t ie expansion clia'inber is the expansion Valve vof i'noisture.

By means of these valves the 4llowof` impurities and liquid ammonia from the ber the gas is dried. On entering the chamber from the inlet pipe 3 the gas has an opportunity to expand which causes it to deposit considerable of its moisture and other impurities. The moisture and other irn-I purities that collect in the bottom of the absorption chamber pass through the channel 21 in the partition 20, the valve 22 being normally open, into the expansion chamber 19. The liquid ammonia and impurities that collect in the lower part of the separator at intervals are permitted to ilowvthrough the pipe 37, the duct 38, and the pipev39 into the distributing cup in the exiansion chamber. The liquidilowi'ng over t e edge of the cup is `sprayed and much of the gas contained in the same escapes. The liquid residue and other impurities collectin the bottom of the expansion chamber and ass through the throat 26 into the disti ling chamber 25. By means of the water-jacket the distilling chamber is ordinarily heated to ab'out'lO()O F. On being heated in the d istilling chamber the remaining gas contained in the liquid residue and impurities is` driven oil' and it passes upwardly .into the expansion chamber. The gas from the latter passes upwardly through the channel 2l, or, il the latter should be closed, through the apertures 23 into .the absorptionchamber, where it is dried and passes from the same through the outlet pipe l/Yhen it is desired to clean the distilliiigr chamber of any residue that may have accumulated in the same, by the admission of steam into the steam-jacket the temperature of the chamber is raised to about 150. This drives ofi any gas that may remain in the residue and liqueies any grease that may have collected. The opening of the blow-ofi` cock in the ipe 34' allows the pressure in the system to wliich the ap aratus is applied to eject the residue throng i the said pipe.

When the system to which the apparatus is applied is operatedwith a Wet compression, which sometimes happens, the gas in the circulating system is accompanied by an excess Should the gas in this condition be permitted to enter the expansion and distilling chambers, the latter would become chilled and any water contained in the same would be frozen, which would put the purifier out of operation. To avoid 'this the channel 21 is closed bythe valve 22 to pre'- vent the entrance ofthe excessively moist gas in'to the expansion and distilling chambers. When the channel'is closed the gas in the expansion chamber can pass from the latter through the apertures 23into the absorption chamber by raising the check-valves 24. The residue can also be expelled from the distilling chamber by permitting an excess of ammonia toenter the expansion chamber 19 from the separator 3 5. When this is done the valve 22 is closed and the ammonia beltion chamber, a check-valve controlling one :escape through the apertures 23,v but thel i pressure' will becomecsufllcient to expel the' residue.' When it is desired to out-out the puriiierfor .the pnrpose of renewing the' .absorbing material in the cells or for any other reason the valves' 6 and 7 inl the inlet and ,outlet-pifies El ande, respectively, are closed and the valve 8 in the by-pass 5 is opened. This arrangement causes the refrigerating agent to pass through the byass instead el through the absorption cham er.

Having' thus described my invention, what II claim and desire to secure by Letters Patent is',

1. in reirigerating apparatus, an absorption chamber, distilling chamber having independent communications with said absorption chamber, a check-valve controlling one of said communications and operating to close. against pressure in the absorption chamber and to open to pressure in the distilling chamber, and an adjustable valve controlling the other communication between the chambers. l

2. l'n'refrigerating apparatus, an absorption chamber, an expansion chamber having independent communications with said absorption chamber, a check-valve controlling one of said communications and operating to close against pressure in the absorption chamber and to open to pressure in the expansion chamber, an adjustable valve controlling the other communication between the chambers, a separator communicating with said expansion chamber, means controlling the communication betweenthe separator and the expansion chamber, and a distilling chamber communicating with said expansion chamber.

3. In refrigerating apparatus, an absorption chamber, a distilling chamber having independent communications with said absorpcf said communications and operating to close against pressure in' the absorption chamber and to open to pressure in the distilling1 chamber, an adjustable valve controlling the other communication between the chambers, a separator communicating with said distilling chamber, and means controling the communication between the separa- `4tor and the distilling chamber.

4. In refrigerating-apparatus, a'casing, inlet and outlet'pipes connected with said casing,

a by-pass connecting said inlet and outlet pipes, val-ves controllmg'said inlet and outlet pipes and said by-pass to divert the refrigerating agent through either vthe casing or Vbypass, an absorption chamber in said casing between the inlet and outlet pipes, an expansion chamber communicating with said absorption chamber, a separator communicating with said expansion chamber', and means for controlling the communication between said separator and saidexpansion chamber.

5,.; ln refrigerating apparatus, a casing, inletandoutlet pipes connected with said casing, a by-pass connecting said'inlet and out'- let pipes, valves controlling said inlet and outlet pipes and said by- )ass to divert the refrigeratiug agent throng. either the casing or b y-pasa'an absorption chamberin said casing between the inlet and outlet pipes, an expansion chamber communicating with said absorption chamber,` a separator communicating with said expansion chamber, means for controlling the communicationbetween the separator and the expansion chamber, and a distilling chamber communicating with said expansion chamber.

ew lnrefrigerating apparatus, a easing, inlet and outlet pipes connected with said casing, a Dypass connecting said inlet and outlet pipes, .valves controlling said inlet and ontlet pipes and said by-pass to divert the refrigerating agent through either the casing or by-pass, an absorption chamber in said casing between said inlet and outlet pi es, a distillingchamber communicating wit said absorption chamber, a separator communicating with said distilling chamber, and means for controlling the communication between said separator and the distilling chamber. f

7. ln reirigerating apparatus, an absorption chamber, an expansion. chamber communicating with said absorption chamber, a separator communicatin with said expansion chamber, and a disti ling chamber communicating with said expansion chamber.

8. In refrigeratine apparatus, an absor tion chamber, a distilling chamber communis eating with said absorption chamber, and a separator ccnununicating with said distilling chamber.

9. In rei'rigerating apparatus, an absorp- Etion chamber, a distilling chamber communieating with said absorption chamber, a separater communicating with said distillmg chamber, and stop and expansion valves controlling the communication between the separator and the distilling chamber. h

10. ln reirigerating apparatus, a casing, inlet and outlet pipesconnected with said casing, ahy-pass connecting said inlet and outlet pipes, valves controlling said inlet and outlet pipes and said by-' ass to divert the refrigerating agent throng either thecasino' or. by-pass, an absorption chamber m said casing between said inlet and outlet pipeska distilling ohamberin said easing below said absorption chamber, a partition in said casing between said cham ers having an aperture and a channel forming communications between said chambers, a check-valve controlling said aperture in the partition and operating to close against pressure m the absorption chamber and to open to pressure in iso the distilling chamber, and an adjustable l valve controlling the channel in the partition. f

11. In refrigeratirig apparatus7 a casing, inlet and outle'tfpipes connected with said casing, a by-pa'ss connecting said inlet and outlet pipes, valves controlling said inlet and outlet pipes and said by-pass to divert the re frigerating agent through either the casing or ley-pass, anab'sorption chamber in said casinvl between said mlet and outlet pipes, a distil ing chamber in said casing below said absorption chamber, a partition in said casing between said chambers having an aperture and a channel forming communications be- "tween said chambers, a check-valve controlling said aperture in the partition and operating to close against pressure in the absor tion chamber and to open to pressure in .t e distilling chamber, an adjustable valve controlling the channel in the partition, a sepa rater communicating wit said distilling chamber, and means for controlling the communis/ation between-the'separator and the distihing chamber.

12. ln refrigerating apparatus, a casing, inlet and outlet pipes connect-cd with said easing', a by-pass connecting said inlet and outlet pipes, valves controlling said inlet and outlet pipes and said byass to divert the refrigerating agent throug i either the casin or by-pass, an absor tion chamber in sai easing between said in et and outlet ipes, an

' expansion chamber in said casing beA 0W lsaid absorption chamber, a partition in saidcas-r ing between said chambers having an aperture and a channel forming communications between said chambers, a, check-valve controlling said aperture in the partition to close against pressure in the vabsorption chamber and to open to pressure/in the ex ansion chamber, an adjustable valve control ing the channel in the partition, a separator communicatingvwith said ex ansion chamber,

and means for controlling t ie communication between the separator and the expansion chamber` 13. In refrigerating apparatus, a' cylindrical easing, an absorption chamber in said casing inter osed in the circulating system, and a plura ity of semicylindrical perforated cells linked together', staggeredly arranged and removably mounted in said chamber.

14. In refrigerating apparatus, a casing, inlet and outlet pipes connected with said casing, a by-pass connecting the inlet Vand outlet pipes, valves controlling said inlet land outlet pipes and said by-pass to divert the refrigerating. agent either through the casing or through the by-pass, an absorption chamber in said easing between said in et and outlet pipes, and 4cells linked together removably mounted in said chamber'.

ln testimony whereof I hereunto affix my signature in the'prescnce of two witnesses.

- JOHN SCHEIDEMAN.

Witnesses: I

GRANT BURRoUGHs, ARTHUR L. BRYANT. 

